BMW Drive Belt Tensioner, Belt and Idler Pully Kit N55 - Genuine BMW - Kies Motorsports
BMW Drive Belt Tensioner, Belt and Idler Pully Kit N55 - Genuine BMW - Kies Motorsports
BMW Drive Belt Tensioner, Belt and Idler Pully Kit N55 - Genuine BMW - Kies Motorsports
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BMW Drive Belt Tensioner, Belt and Idler Pully Kit N55 F Series- Genuine BMW


NOTE: Most OEM BMW products will ship out within 2-4 business days of ordering. 

NOTE: This product does not work on active hybrid vehicles

If the accessory belt is loose in your vehicle, and without the proper tension your generator, and AC might not work properly. Alternatively, if your belt snaps constantly, the tensioner could be too tight.

With either problem, the only solution is a new tensioner. This Genuine BMW Tensioner Kit is a factory direct replacement for an original, worn out unit. It applies the proper amount of tension to the belt to keep it tight against all of the accessory pulleys.

Kit includes:

- Tensioner With Replacement Bolt

- Replacement Pully

- Accessory Belt


This kit is compatible with the N55 powered F30, F32, F33, F34, and F36

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We are typically very quick and have a 24-48 hour turnaround time. Transit time depends on your order and which warehouse we are shipping from, but typical transit times are between 5-7 business days from one side of the US to the other.

Majority of the items we offer do ship free to the lower contiguous 48 states. States that require plane or boat to reach (such as Hawaii, Alaska, Puerto Rico, etc) do NOT qualify for free shipping. Please contact us to inquire about international shipping costs. During checkout, you will know which items ship free and which have shipping costs associated with them. In general, larger/heavier items will have additional shipping costs (body kits, wheels/rims, etc)

Even though everything can be shipped internationally, sometimes the cost is simply just too high and doesn't make sense to do so. We're here to make sure you have a great shopping experience, so if you have a product(s) you want to inquire about, please contact us at

Yes, we do price match reputable competitors in the marketplace. If you find a product cheaper elsewhere, please email us the (1) link of the product from our website and (2) the link to the competitor site. We will make an assessment on our end if we are able to price match or not and respond to you via email.

Typically you have 14 days to return a product you purchase when you change your mind. Damaged and improperly installed products are NOT eligible for returns. Shipping fees may be assessed and not refunded based on criteria as well as restocking fees. Please see our FAQ page for more details.

Unfortunate Kies Motorsports no longer does customer installs (with the exception of crank hubs - we still do thos inhouse). Our HQ is solely reserved for filming, office space, and shipping/receiving.

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